I was wondering how to attach an edible label to a sugar glass bottle (instead of to a cake).

Also, I ordered a label, but it looks just like the edible sheets that go on top of a cake? Is there an edible image that looks more like a label (not as porous-looking) than the images that go on cakes?

You can apply the label to the bottle with a little bit of water. If you use a paint brush to put it on the label. You don't need much.
I've taken wine bottle labels to a local bakery and had them print an edible labeland I've been very happy with the quality of the label.

Thank you!